Be prepared for possible spoilers. Don't say we didn't warn you...
So...Jon Snow is still alive? Or is he? It's hard to tell at just from this one image alone, but HBO have played their hand perfectly with this teaser image.
Fans of the show and/or books will be able to figure out that just because Jon Snow appears to be standing, that doesn't automatically mean he's back in the land of the living.
While it would be great to make an Easter / Resurrection / Second Coming joke about the possible return of Jon "You Know Nothing" Snow, the show is rumoured to make a later-than-usual return this year, most likely April 24th, once HBO's other programs have finished out their respective series.
Besides, Easter arrives early next year (Sunday March 27th), so the jokes would already be a month out of date.